An online visual inspection device and inspection method for inspecting bottle appearance

Abstract

The present invention relates to an online visual inspection device for inspecting the appearance of a bottle body, comprising an inspection workbench and a transmission and transportation mechanism. Since a plurality of camera backlight inspection mechanisms are respectively arranged on both sides of the transmission and transportation mechanism, and a single camera positive light inspection mechanism is arranged at the bottom of the transmission and transportation mechanism, the camera backlight inspection mechanism and the camera positive light inspection mechanism cooperate with each other to realize the inspection of the inspected bottle body and bottle bottom. During the inspection process, the plurality of camera backlight inspection mechanisms arranged on both sides of the transmission and transportation mechanism can be used to perform all-round and dead angle inspection on the plurality of inspected bottle bodies moving on the transmission and transportation mechanism, and the single camera positive light inspection mechanism can be used to inspect the inspected bottle bottom, thereby meeting the requirements of reducing the inspection error and improving the inspection accuracy, and is conducive to improving the inspection efficiency. The inspection method of the present invention has the effects of simple operation and convenient use.

Description

Technical Field

[0001] The present invention relates to a detection device, in particular to an online visual detection device for detecting the appearance of a bottle body and a method for detecting the appearance of a bottle body by using the device. Background Art

[0002] The product quality inspection process is an important part of the product production process. Taking the bottle appearance inspection process as an example, in general, most of the existing bottle inspection processes use separate manual inspections, and then they are manually distributed to the next canning process for canning. In this bottle appearance inspection process, the inspection efficiency is low due to human factors. The existing inspected bottles have some technical defects, such as bubbles, lack of material, black spots, bruises, poor molding and other technical defects. Since manual inspection is carried out by visual inspection, long-term work is prone to visual fatigue, high work intensity and other subjective factors, which easily cause large blind spots in the inspected bottles, resulting in relatively large inspection errors in the inspected bottles. Summary of the invention

[0003] In view of this, a first technical purpose of the present invention is to provide an online visual inspection device for inspecting the appearance of a bottle body, which can improve inspection efficiency, reduce inspection errors, and improve inspection accuracy.

[0004] A second object of the present invention is to provide a method for online visual inspection using the above device.

[0005] In order to solve the above technical problems, the technical solution of the present invention adopts an online visual inspection device for detecting the appearance of the bottle body, which includes an inspection workbench and a transmission and transportation mechanism arranged on the inspection workbench for transmitting the inspected bottle body; a plurality of camera backlight detection mechanisms for detecting the bottle body are respectively arranged on both sides of the transmission and transportation mechanism, and a single camera positive light detection mechanism for detecting the bottle bottom is arranged at the bottom of the transmission and transportation mechanism, and the camera backlight detection mechanism and the camera positive light detection mechanism cooperate with each other to realize the detection action of the inspected bottle body and bottle bottom; a sensor structure for identifying or monitoring whether the material has arrived is arranged at the inlet end of the transmission and transportation mechanism.

[0006] It is further defined that the camera positive light detection mechanism includes a positive light detection base, a positive light detection bracket installed on the positive light detection base, a positive light detection movable guide rail installed on the positive light detection bracket, a positive light detection movable bracket seat installed on the upper end of the positive light detection movable guide rail, a positive light detection lens installed on the positive light detection movable bracket seat, and a positive light bottle bottom movable bracket seat installed on the lower end of the positive light detection movable guide rail for fixing the bottom of the bottle; the positive light detection movable bracket seat and the positive light bottle bottom movable bracket seat respectively move up and down along the positive light detection movable guide rail.

[0007] It is further defined that the camera backlight detection mechanism includes a backlight emitting seat and a backlight receiving seat used in conjunction with the backlight emitting seat; the backlight emitting seat includes a backlight emitting base, a backlight emitting bracket installed on the backlight emitting base, a backlight emitting movable guide rail installed on the inner side of the backlight emitting bracket, a backlight emitting movable bracket seat installed on the backlight emitting movable guide rail, and a backlight emitting lens installed on the backlight emitting movable bracket seat for emitting light; the backlight receiving seat includes a backlight receiving base, a backlight receiving bracket installed on the backlight receiving base, a backlight receiving movable guide rail installed on the inner side of the backlight receiving bracket, a backlight receiving movable bracket seat installed on the backlight receiving movable guide rail, and a backlight receiving lens frame installed on the backlight receiving movable bracket seat for receiving light.

[0008] It is further defined that the transmission and transportation mechanism includes a mechanism bracket directly placed on the inspection workbench, a driving wheel installed at one end of the mechanism bracket, a transmission motor connected to the driving wheel, a driven wheel installed at the other end of the mechanism bracket, a transmission chain for connecting the driving wheel and the driven wheel together, a belt line plate installed on the transmission chain, an encoder mechanism installed on one side of the belt line plate, a bottle body guide and constraint mechanism installed on the belt line plate and placed at a middle position, a bottle body to be inspected placed inside the bottle body guide and constraint mechanism, a line body connection connecting plate installed at the tail end of the mechanism bracket, and a push plate mechanism installed on one side of the mechanism bracket for rejecting unqualified bottles, and a discharge channel mechanism located at the outlet end of the belt line plate installed on the mechanism bracket.

[0009] It is further defined that the encoder mechanism includes an encoder base, an encoder bracket installed on the encoder base and arranged obliquely, an encoder roller installed on the other end of the encoder bracket, and an encoder installed on the encoder roller.

[0010] It is further defined that the bottle body guiding and restraining mechanism includes a restraining guardrail rod arranged at the upper end of the belt line plate, and a restraining guide mechanism respectively installed at both ends of the two restraining guardrail rods; the restraining guide mechanism includes a restraining transverse rod directly fixed on the restraining guardrail rod, a restraining intermediate connecting piece installed at the other end of the restraining transverse rod, a restraining longitudinal rod installed on the other side of the restraining intermediate connecting piece, and a restraining fixing piece installed at the lower end of the restraining longitudinal rod.

[0011] It is further defined that the push plate mechanism includes a push plate fixing frame directly fixed on the side of the transmission and transportation mechanism, a hydraulic pump installed on the push plate fixing frame, a push plate retraction rod installed inside the hydraulic pump and capable of retracting and moving back and forth, and a push plate installed at the other end of the push plate retraction rod.

[0012] It is further defined that the unloading channel mechanism includes an unloading support frame placed at the output end of the transmission and transportation mechanism, and an unloading guide plate installed at an angle on the unloading support frame; one end of the unloading guide plate is placed at the output end of the transmission and transportation mechanism, and the other end of the unloading guide plate is placed on the horizontal ground.

[0013] A detection method for an online visual inspection device for detecting the appearance of a bottle body is as follows: first, the bottle body to be inspected is manually placed at a designated position at the head end of a transmission and transportation mechanism, then, the sensor structure is used to identify and monitor the bottle body placed in a bottle body guide and constraint mechanism, and then, the CCD system in a camera backlight detection mechanism and a single-group camera positive light detection mechanism is used to start automatic detection, and a full-scale detection is performed on the bottle body moved onto a belt line board; when the CCD system automatically detects an unqualified bottle body, an instruction is released to the push plate mechanism, which moves to the designated position at the front end of the push plate machine, and the compression rod inside the push plate mechanism moves forward to drive the unqualified bottle body to move to the designated position.

[0014] The beneficial technical effect of the present invention is as follows: since a plurality of camera backlight detection mechanisms for detecting the bottle body are respectively arranged on both sides of the transmission and transportation mechanism, and a single camera positive light detection mechanism for detecting the bottle bottom is arranged at the bottom of the transmission and transportation mechanism, the camera backlight detection mechanism and the camera positive light detection mechanism cooperate with each other to realize the detection of the detected bottle body and bottle bottom. During the detection process, the plurality of camera backlight detection mechanisms arranged on both sides of the transmission and transportation mechanism are used to perform all-round and non-dead angle detection on the plurality of detected bottle bodies moving on the transmission and transportation mechanism, and the single camera positive light detection mechanism is used to detect the detected bottle bottom, replacing the manual detection process in the prior art, avoiding errors and reduced detection accuracy caused by human subjective factors, thereby meeting the requirements of reducing detection errors and improving detection accuracy. This detection method can continuously and uninterruptedly detect the detected bottle body, which is conducive to improving detection efficiency. During inspection, it is sufficient to place the bottle to be inspected at the designated position at the head end of the transmission and transportation mechanism. The other inspection work is completed by the camera backlight inspection mechanism and the single-group camera positive light inspection mechanism. Compared with similar inspection processes in the prior art, the inspection method of the present invention is simple to operate and easy to use.

[0015] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of an online visual inspection device for inspecting the appearance of a bottle according to the present invention;

[0017] Figure 2 It is a schematic diagram of the top view of the online visual inspection device described in the present invention;

[0018] Figure 3 It is a schematic diagram of the side of the online visual inspection device described in the present invention;

[0019] Figure 4 is a schematic diagram of another side of the online visual inspection device described in the present invention;

[0020] Figure 5 It is a stereoscopic diagram of a positive light detection mechanism of a single camera group in the present invention;

[0021] Figure 6 It is a schematic diagram of the front side of the positive light detection mechanism of a single camera group in the present invention;

[0022] Figure 7 It is a schematic diagram of the back side of the positive light detection mechanism of a single camera group in the present invention;

[0023] Figure 8 It is a schematic diagram of a top view of a positive light detection mechanism of a single camera group in the present invention;

[0024] Fig. 9 It is a three-dimensional diagram of the camera backlight detection mechanism in the present invention;

[0025] Fig.10 It is a side view of the backlight emitting seat of the present invention;

[0026] Fig.11 It is a side view of the backlight receiving seat of the present invention;

[0027] Fig.12 is a schematic diagram of the backlight emitting base in the present invention when viewed from above;

[0028] Fig.13 It is a schematic diagram of the backlight receiving seat in the present invention when viewed from above;

[0029] Fig.14 It is a schematic diagram of the back side of the backlight receiving seat of the present invention;

[0030] Fig.15 It is a front schematic diagram of the encoder mechanism described in the present invention;

[0031] Fig.16 It is a side schematic diagram of the encoder mechanism described in the present invention;

[0032] Fig.17 is a schematic diagram of the encoder mechanism of the present invention in a top view;

[0033] Fig.18 It is a three-dimensional diagram of the bottle guide and restraint mechanism in the present invention;

[0034] Fig.19 It is a schematic diagram of the top view of the bottle guiding and restraining mechanism in the present invention;

[0035] Fig. 20 It is a side view schematic diagram of the bottle body guiding and restraining mechanism in the present invention;

[0036] Fig.21 is a structural diagram of a constraint guide mechanism in the present invention;

[0037] Fig. 22 is a structural diagram of another constraint guiding mechanism in the present invention;

[0038] Fig.23 It is a three-dimensional diagram of the push plate mechanism in the present invention;

[0039] Fig.24 It is a side schematic diagram of the push plate mechanism in the present invention;

[0040] Fig.25 It is a schematic diagram of the push plate mechanism in the present invention when viewed from above;

[0041] Fig.26 Another side view of the push plate mechanism of the present invention;

[0042] Fig. 27 It is a side schematic diagram of the material discharge channel mechanism in the present invention;

[0043] Fig.28 It is a schematic diagram of the top view of the material feeding channel mechanism in the present invention;

[0044] Fig.29 It is another side view schematic diagram of the material discharge channel mechanism in the present invention;

[0045] Fig.30 The present invention is a schematic diagram of the detection process of an online visual detection device for detecting the appearance of a bottle. DETAILED DESCRIPTION

[0046] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0047] Please refer to Figures 1 to 29As shown, an online visual inspection device for inspecting the appearance of a bottle body is described below in combination with an embodiment, which includes an inspection workbench 1, and a transmission and transportation mechanism 2 arranged on the inspection workbench 1 for transmitting the inspected bottle body, a plurality of camera backlight inspection mechanisms 3 respectively arranged on both sides of the transmission and transportation mechanism 2, a single camera positive light inspection mechanism 4 arranged at the bottom of the transmission and transportation mechanism 2, and a sensor structure 5 arranged at the inlet end of the transmission and transportation mechanism 2 for identifying or monitoring whether the material has arrived. The camera backlight inspection mechanism 3 and the camera positive light inspection mechanism 4 cooperate with each other to realize the inspection action of the inspected bottle body and bottle bottom.

[0048] The camera positive light detection mechanism 4 includes a positive light detection base 40, a positive light detection bracket 41 installed on the positive light detection base 40, a positive light detection movable guide rail 42 installed on the positive light detection bracket 41, a positive light detection movable bracket seat 43 installed on the upper end of the positive light detection movable guide rail 42, a positive light detection lens 44 installed on the positive light detection movable bracket seat 43, and a positive light bottle bottom movable bracket seat 45 for fixing the bottom of the bottle installed at the lower end of the positive light detection movable guide rail 42; the positive light detection movable bracket seat 43 and the positive light bottle bottom movable bracket seat 45 move up and down along the positive light detection movable guide rail 42 respectively.

[0049] The camera backlight detection mechanism 3 includes a backlight emitting seat and a backlight receiving seat used in conjunction with the backlight emitting seat; the backlight emitting seat includes a backlight emitting base 32, a backlight emitting bracket 33 installed on the backlight emitting base 32, a backlight emitting movable guide rail 34 installed on the inner side of the backlight emitting bracket 33, a backlight emitting movable bracket seat 35 installed on the backlight emitting movable guide rail 34, and a backlight emitting lens 36 for emitting light installed on the backlight emitting movable bracket seat 35; the backlight receiving seat includes a backlight receiving base 37, a backlight receiving bracket 38 installed on the backlight receiving base 37, a backlight receiving movable guide rail 39 installed on the inner side of the backlight receiving bracket 38, a backlight receiving movable bracket seat 301 installed on the backlight receiving movable guide rail 39, and a backlight receiving lens frame 302 for receiving light installed on the backlight receiving movable bracket seat 301.

[0050] The transmission and transportation mechanism 2 includes a mechanism bracket directly placed on the inspection workbench 1, a driving wheel installed at one end of the mechanism bracket, a transmission motor connected to the driving wheel, a driven wheel installed at the other end of the mechanism bracket, a transmission chain for connecting the driving wheel and the driven wheel together, a belt line plate 20 installed on the transmission chain, an encoder mechanism 21 installed on one side of the belt line plate 20, a bottle body guide constraint mechanism 6 installed on the belt line plate 20 and placed at the middle position, a bottle body to be inspected placed inside the bottle body guide constraint mechanism 6, a line body connection connecting plate installed at the tail end of the mechanism bracket, and a push plate mechanism 22 installed on one side of the mechanism bracket for rejecting unqualified bottles, and a discharge channel mechanism located at the outlet end of the belt line plate 20 installed on the mechanism bracket.

[0051] The encoder mechanism 21 includes an encoder base 201 , an encoder bracket 202 installed on the encoder base 201 and tilted, an encoder roller 203 installed on the other end of the encoder bracket 202 , and an encoder installed on the encoder roller 203 .

[0052] The bottle body guiding and restraining mechanism 6 includes a restraining guardrail rod 204 arranged at the upper end of the belt line plate 20, and a restraining guiding mechanism respectively installed at both ends of the two restraining guardrail rods 204; the restraining guiding mechanism includes a restraining transverse rod 205 directly fixed on the restraining guardrail rod 204, a restraining intermediate connecting piece 206 installed at the other end of the restraining transverse rod 205, a restraining longitudinal rod 207 installed on the other side of the restraining intermediate connecting piece 206, and a restraining fixing piece 208 installed at the lower end of the restraining longitudinal rod 207.

[0053] The push plate mechanism 22 includes a push plate fixing frame 209 directly fixed on the side of the transmission and transportation mechanism 2, a hydraulic pump 210 installed on the push plate fixing frame 209, a push plate retraction rod 211 installed inside the hydraulic pump 210 and capable of retracting and moving back and forth, and a push plate 212 installed at the other end of the push plate retraction rod 211.

[0054] The unloading channel mechanism includes an unloading support frame 213 placed at the output end of the transmission and transportation mechanism 2, and an unloading guide plate 214 installed on the unloading support frame 213 at an angle; one end of the unloading guide plate 214 is placed at the output end of the transmission and transportation mechanism 2, and the other end of the unloading guide plate 214 is placed on the horizontal ground.

[0055] The inspection workbench 1 includes a workbench bracket 101, a workbench panel 102 installed on the workbench bracket 101, a support foot pad 103 and a universal roller 104 installed at the bottom of the workbench bracket 101, and a work cabinet arranged inside the workbench bracket 101. The transmission and transportation mechanism 2 is installed at the middle position of the workbench panel 102, and the bottle body guide constraint mechanism 6 is installed at the central position of the transmission and transportation mechanism 2. The inspected bottle body is placed inside the bottle body guide constraint mechanism 6. The plurality of camera backlight detection mechanisms 3 are installed on the workbench panel 102 and are located on both sides of the transmission and transportation mechanism 2. The backlight transmitting seat is installed on one side of the transmission and transportation mechanism 2, and the backlight receiving seat corresponding to the backlight transmitting seat is installed on the other side of the transmission and transportation mechanism 2. The plurality of camera backlight detection mechanisms 3 are respectively installed on both sides of the transmission and transportation mechanism 2, and are arranged and installed in a staggered distribution. The single camera positive light detection mechanism 4 is installed at the input end of the transmission and transportation mechanism 2 and is located at the lower end of the transmission and transportation mechanism 2, and is used to detect the appearance of the bottom part of the bottle. The camera backlight detection mechanism 3 and the camera positive light detection mechanism 4 cooperate with each other to realize the detection action of the bottle body and bottle bottom being detected. At the inlet end of the transmission and transportation mechanism 2, a sensor structure 5 for identifying or monitoring whether the material has arrived is installed on the side of the transmission and transportation mechanism 2. The encoder mechanism 21 is installed on one side of the bottle body guide constraint mechanism 6, and the push plate mechanism 22 is installed on one side of the transmission and transportation mechanism 2 and is located at the output end of the transmission and transportation mechanism 2. When an unqualified bottle body is detected, the push plate mechanism 22 drives the push plate 212 to move forward and push the unqualified bottle body to the other side of the transmission and transportation mechanism 2 so that it can be transported to the unqualified receiving position for subsequent processing.

[0056] When in use, first, the sensor inside the sensor structure 5 detects that the bottle is transported to the assembly line position, and then the bottle is transported to the bottle guide constraint mechanism 6 through the transmission and transportation mechanism 2 and moves slowly. Then, the encoder is rotated by a roller set on one side of the upper end of the transmission and transportation mechanism 2 to record the pulse position of the product. After the PLC program records the pulse, it triggers the camera to take pictures in real time according to the camera position to detect the appearance of the product.

[0057] During the detection process, the plurality of camera backlight detection mechanisms 3 arranged on both sides of the transmission and transportation mechanism 2 are used to perform all-round detection without blind spots on the plurality of bottles to be detected moving on the transmission and transportation mechanism 2, and the single camera positive light detection mechanism 4 detects the bottom of the bottle to be detected, replacing the manual detection process in the prior art, avoiding errors and reduced detection accuracy caused by human subjective factors, thereby meeting the requirements of reducing detection errors and improving detection accuracy. This detection method can continuously and uninterruptedly detect the bottles to be detected, which is conducive to improving detection efficiency. During the detection, it is sufficient to place the bottles to be detected at the designated position at the head end of the transmission and transportation mechanism 2, and the other detection work is completed by the camera backlight detection mechanism 3 and the single camera positive light detection mechanism 4. Compared with similar detection processes in the prior art, the detection method of the present invention has the effects of simple operation and convenient use.

[0058] The railings on the belt line protect the bottles from tipping over. The side camera test inside the single-group camera positive light detection mechanism 4, each camera has a 60-degree field of view, ensuring a complete 360-degree inspection of the bottle. Qualified products flow to the next process, and unqualified products are removed in the middle. In this embodiment, the 360-degree rotation of the bottle body in the traditional mode of detection is not required, and the offline detection method of the detection process is solved. It can be directly detected in real time after the bottle washing and drying process, and then connected to the filling process.

[0059] Please refer to Fig.30 As shown, an inspection method of an online visual inspection device for inspecting the appearance of a bottle body is as follows: first, the bottle body to be inspected is manually placed at a designated position at the head end of a transmission and transportation mechanism, and then the sensor structure 5 is used to identify and monitor the bottle body placed in the bottle body guide and constraint mechanism 6, and then the CCD system in the camera backlight inspection mechanism and the single-group camera positive light inspection mechanism is used to start automatic inspection, and the bottle body moved to the belt line is inspected in all directions; when the CCD system automatically detects an unqualified bottle body, an instruction is released to the push plate mechanism, which moves to the designated position at the front end of the push plate machine, and the compression rod inside the push plate mechanism moves forward to drive the unqualified bottle body to move to the designated position.

[0060] In summary, since a plurality of camera backlight detection mechanisms for detecting the bottle body are respectively arranged on both sides of the transmission and transportation mechanism, and a single camera positive light detection mechanism for detecting the bottle bottom is arranged at the bottom of the transmission and transportation mechanism, the camera backlight detection mechanism and the camera positive light detection mechanism cooperate with each other to realize the detection action of the detected bottle body and bottle bottom. During the detection process, the plurality of camera backlight detection mechanisms arranged on both sides of the transmission and transportation mechanism are used to perform all-round and non-dead angle detection on the plurality of detected bottle bodies moving on the transmission and transportation mechanism, and the single camera positive light detection mechanism is used to detect the detected bottle bottom, replacing the manual detection process in the prior art, avoiding errors and reduced detection accuracy caused by human subjective factors, thereby meeting the requirements of reducing detection errors and improving detection accuracy. This detection method can continuously and uninterruptedly detect the detected bottle body, which is conducive to improving detection efficiency. During inspection, it is sufficient to place the bottle to be inspected at the designated position at the head end of the transmission and transportation mechanism. The other inspection work is completed by the camera backlight inspection mechanism and the single-group camera positive light inspection mechanism. Compared with similar inspection processes in the prior art, the inspection method of the present invention is simple to operate and easy to use.

[0061] The preferred embodiments of the present invention are described above with reference to the accompanying drawings, but the scope of the present invention is not limited thereby. Any modification, equivalent substitution and improvement made by those skilled in the art without departing from the scope and essence of the present invention shall be within the scope of the present invention.

Claims

1. An online visual inspection device for inspecting the appearance of a bottle, comprising an inspection workbench and a transmission and transportation mechanism disposed on the inspection workbench for transporting the inspected bottle; characterized in that: A plurality of camera backlight detection mechanisms for detecting the bottle body are respectively arranged on both sides of the transmission and transportation mechanism, and a single camera positive light detection mechanism for detecting the bottle bottom is arranged at the bottom of the transmission and transportation mechanism. The camera backlight detection mechanism and the camera positive light detection mechanism cooperate with each other to realize the detection of the detected bottle body and bottle bottom; a sensor structure for identifying or monitoring whether the material has arrived is arranged at the inlet end of the transmission and transportation mechanism; The transmission and transportation mechanism includes a mechanism bracket directly placed on the detection workbench, a driving wheel installed at one end of the mechanism bracket, a transmission motor connected to the driving wheel, a driven wheel installed at the other end of the mechanism bracket, a transmission chain for connecting the driving wheel and the driven wheel together, a belt line board installed on the transmission chain, an encoder mechanism installed on one side of the belt line board, a bottle body guide constraint mechanism installed on the belt line board and placed at a middle position, a bottle body to be detected placed inside the bottle body guide constraint mechanism, a line body connection connecting plate installed at the tail end of the mechanism bracket, and a push plate mechanism installed on one side of the mechanism bracket for rejecting unqualified bottles, and a material discharge channel mechanism installed on the mechanism bracket and located at the outlet end of the belt line board; The bottle body guiding and restraining mechanism comprises a restraining guardrail bar arranged at the upper end of the belt line plate, and restraining guide mechanisms respectively installed at both ends of the two restraining guardrail bars; the restraining and guiding mechanism comprises a restraining transverse bar directly fixed on the restraining guardrail bar, a restraining intermediate connecting piece installed at the other end of the restraining transverse bar, a restraining longitudinal bar installed on the other side of the restraining intermediate connecting piece, and a restraining fixing piece installed at the lower end of the restraining longitudinal bar; The push plate mechanism includes a push plate fixing frame directly fixed on the side of the transmission and transportation mechanism, a hydraulic pump installed on the push plate fixing frame, a push plate retracting rod installed inside the hydraulic pump and capable of retracting and moving back and forth, and a push plate installed at the other end of the push plate retracting rod.

2. The online visual inspection device for inspecting the appearance of a bottle according to claim 1, characterized in that: The camera positive light detection mechanism includes a positive light detection base, a positive light detection bracket installed on the positive light detection base, a positive light detection movable guide rail installed on the positive light detection bracket, a positive light detection movable bracket seat installed on the upper end of the positive light detection movable guide rail, a positive light detection lens installed on the positive light detection movable bracket seat, and a positive light bottle bottom movable bracket seat installed on the lower end of the positive light detection movable guide rail for fixing the bottom of the bottle; the positive light detection movable bracket seat and the positive light bottle bottom movable bracket seat move up and down along the positive light detection movable guide rail respectively.

3. The online visual inspection device for inspecting the appearance of a bottle according to claim 1, characterized in that: The camera backlight detection mechanism includes a backlight emitting seat and a backlight receiving seat used in conjunction with the backlight emitting seat; the backlight emitting seat includes a backlight emitting base, a backlight emitting bracket installed on the backlight emitting base, a backlight emitting movable guide rail installed on the inner side of the backlight emitting bracket, a backlight emitting movable bracket seat installed on the backlight emitting movable guide rail, and a backlight emitting lens installed on the backlight emitting movable bracket seat for emitting light; the backlight receiving seat includes a backlight receiving base, a backlight receiving bracket installed on the backlight receiving base, a backlight receiving movable guide rail installed on the inner side of the backlight receiving bracket, a backlight receiving movable bracket seat installed on the backlight receiving movable guide rail, and a backlight receiving lens frame installed on the backlight receiving movable bracket seat for receiving light.

4. The online visual inspection device for inspecting the appearance of a bottle according to claim 1, characterized in that: The encoder mechanism comprises an encoder base, an encoder bracket installed on the encoder base and arranged obliquely, an encoder roller installed on the other end of the encoder bracket, and an encoder installed on the encoder roller.

5. The online visual inspection device for inspecting the appearance of a bottle according to claim 1, characterized in that: The unloading channel mechanism includes an unloading support frame placed at the output end of the transmission and transportation mechanism, and an unloading guide plate installed on the unloading support frame at an angle; one end of the unloading guide plate is placed at the output end of the transmission and transportation mechanism, and the other end of the unloading guide plate is placed on the horizontal ground.

6. A detection method using an online visual inspection device for detecting the appearance of a bottle according to any one of claims 1 to 5, characterized in that: First, the bottle to be inspected is manually placed at the designated position at the head end of the transmission and transportation mechanism, and then the sensor structure is used to identify and monitor the bottle placed in the bottle guide and constraint mechanism; then, the CCD system in the camera backlight detection mechanism and the single-group camera positive light detection mechanism is used to start automatic detection, and the bottle moved to the belt line is fully inspected; when the CCD system automatically detects an unqualified bottle, it releases an instruction to the push plate mechanism, which moves to the designated position at the front end of the push plate machine, and the compression rod inside the push plate mechanism moves forward to drive the unqualified bottle to move to the designated position.

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